After this course the student:
- is able to distinguish between “energy storing vs. dissipative” and “generator vs. modulator” types of transducers.
- is able to calculate the stress and strain in both axially and transversely loaded beams.
- is able to design a simple elastically deforming sensor structure with optimal placement of metal or semiconductor strain gauges and make an estimate of the sensitivity.
- is able to derive the energy function for energy-storing generator type transducers using a path integral
- is able to perform an equilibrium and stability analysis using the energy function of an energy-storing transducer
- understands the definition of the coupling factor and its role in stability analysis of two-port energy storing transducers.
- is able to design and analyze simple electrostatic and magnetic transducers based on their energy function.
- is able to derive the small signal response and electrical impedance of electrostatic and magnetic transducers.
The course provides an introduction to mechanical devices like force and pressure sensors, microphones, acceleration sensors and angular rate sensors and explains how mechanical deformation can be calculated from the applied loads. It then continues with the transduction principles needed to detect the mechanical deformation: modulator-type transducers like (piezo-)resistive strain gauges, and generator-type transducers like electrostatic and magnetic transducers.